Finding the Fourth Proportional to 77,188.34, 106,521.82 and 43,196.55

Step by Step Solution

1. Step 1: Write the proportion equation
   77,188.34 : 106,521.82 = 43,196.55 : x
2. Step 2: Convert to fraction form
   77,188.34/106,521.82 = 43,196.55/x
3. Step 3: Cross multiply
   77,188.34x = 106,521.82 × 43,196.55
4. Step 4: Simplify right side
   77,188.34x = 4,601,375,547.49
5. Step 5: Solve for x
   x = 4,601,375,547.49/77,188.34
6. Step 6: Final answer
   x = 59,612.31