Finding the Fourth Proportional to 98,688, 147,870.72 and 59,151.36

Step by Step Solution

1. Step 1: Write the proportion equation
   98,688 : 147,870.72 = 59,151.36 : x
2. Step 2: Convert to fraction form
   98,688/147,870.72 = 59,151.36/x
3. Step 3: Cross multiply
   98,688x = 147,870.72 × 59,151.36
4. Step 4: Simplify right side
   98,688x = 8,746,754,192.18
5. Step 5: Solve for x
   x = 8,746,754,192.18/98,688
6. Step 6: Final answer
   x = 88,630.37