Finding the Fourth Proportional to 156,828.72, 216,428.04 and 92,302.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,828.72 : 216,428.04 = 92,302.50 : x
2. Step 2: Convert to fraction form
   156,828.72/216,428.04 = 92,302.50/x
3. Step 3: Cross multiply
   156,828.72x = 216,428.04 × 92,302.50
4. Step 4: Simplify right side
   156,828.72x = 19,976,849,162.10
5. Step 5: Solve for x
   x = 19,976,849,162.10/156,828.72
6. Step 6: Final answer
   x = 127,380.04