Finding the Fourth Proportional to 78,066.05, 107,686.17 and 46,999.66

Step by Step Solution

1. Step 1: Write the proportion equation
   78,066.05 : 107,686.17 = 46,999.66 : x
2. Step 2: Convert to fraction form
   78,066.05/107,686.17 = 46,999.66/x
3. Step 3: Cross multiply
   78,066.05x = 107,686.17 × 46,999.66
4. Step 4: Simplify right side
   78,066.05x = 5,061,213,744.45
5. Step 5: Solve for x
   x = 5,061,213,744.45/78,066.05
6. Step 6: Final answer
   x = 64,832.46