Finding the Fourth Proportional to 139,010.56, 191,834.80 and 75,348.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,010.56 : 191,834.80 = 75,348.32 : x
2. Step 2: Convert to fraction form
   139,010.56/191,834.80 = 75,348.32/x
3. Step 3: Cross multiply
   139,010.56x = 191,834.80 × 75,348.32
4. Step 4: Simplify right side
   139,010.56x = 14,454,429,897.54
5. Step 5: Solve for x
   x = 14,454,429,897.54/139,010.56
6. Step 6: Final answer
   x = 103,980.80