Finding the Fourth Proportional to 78,309.95, 108,066.83 and 42,499.98

Step by Step Solution

1. Step 1: Write the proportion equation
   78,309.95 : 108,066.83 = 42,499.98 : x
2. Step 2: Convert to fraction form
   78,309.95/108,066.83 = 42,499.98/x
3. Step 3: Cross multiply
   78,309.95x = 108,066.83 × 42,499.98
4. Step 4: Simplify right side
   78,309.95x = 4,592,837,901.16
5. Step 5: Solve for x
   x = 4,592,837,901.16/78,309.95
6. Step 6: Final answer
   x = 58,649.48