Finding the Fourth Proportional to 78,069.98, 107,736.93 and 42,260.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,069.98 : 107,736.93 = 42,260.01 : x
2. Step 2: Convert to fraction form
   78,069.98/107,736.93 = 42,260.01/x
3. Step 3: Cross multiply
   78,069.98x = 107,736.93 × 42,260.01
4. Step 4: Simplify right side
   78,069.98x = 4,552,963,739.17
5. Step 5: Solve for x
   x = 4,552,963,739.17/78,069.98
6. Step 6: Final answer
   x = 58,319.01