Finding the Fourth Proportional to 156,788.58, 216,234.18 and 105,792.60

Step by Step Solution

1. Step 1: Write the proportion equation
   156,788.58 : 216,234.18 = 105,792.60 : x
2. Step 2: Convert to fraction form
   156,788.58/216,234.18 = 105,792.60/x
3. Step 3: Cross multiply
   156,788.58x = 216,234.18 × 105,792.60
4. Step 4: Simplify right side
   156,788.58x = 22,875,976,111.07
5. Step 5: Solve for x
   x = 22,875,976,111.07/156,788.58
6. Step 6: Final answer
   x = 145,903.33