Finding the Fourth Proportional to 76,889.22, 106,111.83 and 42,897.78

Step by Step Solution

1. Step 1: Write the proportion equation
   76,889.22 : 106,111.83 = 42,897.78 : x
2. Step 2: Convert to fraction form
   76,889.22/106,111.83 = 42,897.78/x
3. Step 3: Cross multiply
   76,889.22x = 106,111.83 × 42,897.78
4. Step 4: Simplify right side
   76,889.22x = 4,551,961,938.74
5. Step 5: Solve for x
   x = 4,551,961,938.74/76,889.22
6. Step 6: Final answer
   x = 59,201.56