Finding the Fourth Proportional to 139,281, 208,922.19 and 59,307.67

Step by Step Solution

1. Step 1: Write the proportion equation
   139,281 : 208,922.19 = 59,307.67 : x
2. Step 2: Convert to fraction form
   139,281/208,922.19 = 59,307.67/x
3. Step 3: Cross multiply
   139,281x = 208,922.19 × 59,307.67
4. Step 4: Simplify right side
   139,281x = 12,390,688,300.20
5. Step 5: Solve for x
   x = 12,390,688,300.20/139,281
6. Step 6: Final answer
   x = 88,961.80