Finding the Fourth Proportional to 139,050.56, 191,888.88 and 75,388.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,050.56 : 191,888.88 = 75,388.16 : x
2. Step 2: Convert to fraction form
   139,050.56/191,888.88 = 75,388.16/x
3. Step 3: Cross multiply
   139,050.56x = 191,888.88 × 75,388.16
4. Step 4: Simplify right side
   139,050.56x = 14,466,149,587.66
5. Step 5: Solve for x
   x = 14,466,149,587.66/139,050.56
6. Step 6: Final answer
   x = 104,035.18