Finding the Fourth Proportional to 162,385.32, 243,646.10 and 72,366.02

Step by Step Solution

1. Step 1: Write the proportion equation
   162,385.32 : 243,646.10 = 72,366.02 : x
2. Step 2: Convert to fraction form
   162,385.32/243,646.10 = 72,366.02/x
3. Step 3: Cross multiply
   162,385.32x = 243,646.10 × 72,366.02
4. Step 4: Simplify right side
   162,385.32x = 17,631,696,965.46
5. Step 5: Solve for x
   x = 17,631,696,965.46/162,385.32
6. Step 6: Final answer
   x = 108,579.38