Finding the Fourth Proportional to 100,942, 139,304.76 and 56,230

Step by Step Solution

1. Step 1: Write the proportion equation
   100,942 : 139,304.76 = 56,230 : x
2. Step 2: Convert to fraction form
   100,942/139,304.76 = 56,230/x
3. Step 3: Cross multiply
   100,942x = 139,304.76 × 56,230
4. Step 4: Simplify right side
   100,942x = 7,833,106,654.80
5. Step 5: Solve for x
   x = 7,833,106,654.80/100,942
6. Step 6: Final answer
   x = 77,600.07