Finding the Fourth Proportional to 199,278,428.02, 275,004,348.61 and 111,172,426.00

Step by Step Solution

1. Step 1: Write the proportion equation
   199,278,428.02 : 275,004,348.61 = 111,172,426.00 : x
2. Step 2: Convert to fraction form
   199,278,428.02/275,004,348.61 = 111,172,426.00/x
3. Step 3: Cross multiply
   199,278,428.02x = 275,004,348.61 × 111,172,426.00
4. Step 4: Simplify right side
   199,278,428.02x = 30,572,900,594,148,408
5. Step 5: Solve for x
   x = 30,572,900,594,148,408/199,278,428.02
6. Step 6: Final answer
   x = 153,418,013.67