Finding the Fourth Proportional to 139,144.22, 208,699.29 and 59,214.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,144.22 : 208,699.29 = 59,214.32 : x
2. Step 2: Convert to fraction form
   139,144.22/208,699.29 = 59,214.32/x
3. Step 3: Cross multiply
   139,144.22x = 208,699.29 × 59,214.32
4. Step 4: Simplify right side
   139,144.22x = 12,357,985,498.34
5. Step 5: Solve for x
   x = 12,357,985,498.34/139,144.22
6. Step 6: Final answer
   x = 88,814.22