Finding the Fourth Proportional to 13,160,955.11, 18,162,612.72 and 7,359,722.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,160,955.11 : 18,162,612.72 = 7,359,722.55 : x
2. Step 2: Convert to fraction form
   13,160,955.11/18,162,612.72 = 7,359,722.55/x
3. Step 3: Cross multiply
   13,160,955.11x = 18,162,612.72 × 7,359,722.55
4. Step 4: Simplify right side
   13,160,955.11x = 133,671,790,402,300.83
5. Step 5: Solve for x
   x = 133,671,790,402,300.83/13,160,955.11
6. Step 6: Final answer
   x = 10,156,693.75