Finding the Fourth Proportional to 139,086.11, 191,938.93 and 75,423.89

Step by Step Solution

1. Step 1: Write the proportion equation
   139,086.11 : 191,938.93 = 75,423.89 : x
2. Step 2: Convert to fraction form
   139,086.11/191,938.93 = 75,423.89/x
3. Step 3: Cross multiply
   139,086.11x = 191,938.93 × 75,423.89
4. Step 4: Simplify right side
   139,086.11x = 14,476,779,783.34
5. Step 5: Solve for x
   x = 14,476,779,783.34/139,086.11
6. Step 6: Final answer
   x = 104,085.02