Finding the Fourth Proportional to 77,404.81, 116,159.00 and 28,156.81

Step by Step Solution

1. Step 1: Write the proportion equation
   77,404.81 : 116,159.00 = 28,156.81 : x
2. Step 2: Convert to fraction form
   77,404.81/116,159.00 = 28,156.81/x
3. Step 3: Cross multiply
   77,404.81x = 116,159.00 × 28,156.81
4. Step 4: Simplify right side
   77,404.81x = 3,270,666,752.01
5. Step 5: Solve for x
   x = 3,270,666,752.01/77,404.81
6. Step 6: Final answer
   x = 42,254.05