Finding the Fourth Proportional to 13,155,498.12, 18,154,722.06 and 7,354,602.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,155,498.12 : 18,154,722.06 = 7,354,602.12 : x
2. Step 2: Convert to fraction form
   13,155,498.12/18,154,722.06 = 7,354,602.12/x
3. Step 3: Cross multiply
   13,155,498.12x = 18,154,722.06 × 7,354,602.12
4. Step 4: Simplify right side
   13,155,498.12x = 133,520,757,350,486.77
5. Step 5: Solve for x
   x = 133,520,757,350,486.77/13,155,498.12
6. Step 6: Final answer
   x = 10,149,426.20