Finding the Fourth Proportional to 139,076.88, 208,691 and 59,102.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,076.88 : 208,691 = 59,102.32 : x
2. Step 2: Convert to fraction form
   139,076.88/208,691 = 59,102.32/x
3. Step 3: Cross multiply
   139,076.88x = 208,691 × 59,102.32
4. Step 4: Simplify right side
   139,076.88x = 12,334,122,263.12
5. Step 5: Solve for x
   x = 12,334,122,263.12/139,076.88
6. Step 6: Final answer
   x = 88,685.64