Finding the Fourth Proportional to 112,376.91, 155,084.86 and 64,630.31

Step by Step Solution

1. Step 1: Write the proportion equation
   112,376.91 : 155,084.86 = 64,630.31 : x
2. Step 2: Convert to fraction form
   112,376.91/155,084.86 = 64,630.31/x
3. Step 3: Cross multiply
   112,376.91x = 155,084.86 × 64,630.31
4. Step 4: Simplify right side
   112,376.91x = 10,023,181,641.11
5. Step 5: Solve for x
   x = 10,023,181,641.11/112,376.91
6. Step 6: Final answer
   x = 89,192.54