Finding the Fourth Proportional to 76,876,387.60, 106,089,413.52 and 42,069,089.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,876,387.60 : 106,089,413.52 = 42,069,089.56 : x
2. Step 2: Convert to fraction form
   76,876,387.60/106,089,413.52 = 42,069,089.56/x
3. Step 3: Cross multiply
   76,876,387.60x = 106,089,413.52 × 42,069,089.56
4. Step 4: Simplify right side
   76,876,387.60x = 4,463,085,038,740,755
5. Step 5: Solve for x
   x = 4,463,085,038,740,755/76,876,387.60
6. Step 6: Final answer
   x = 58,055,342.84