Finding the Fourth Proportional to 77,426,814.66, 106,851,823.09 and 42,142,914.05

Step by Step Solution

1. Step 1: Write the proportion equation
   77,426,814.66 : 106,851,823.09 = 42,142,914.05 : x
2. Step 2: Convert to fraction form
   77,426,814.66/106,851,823.09 = 42,142,914.05/x
3. Step 3: Cross multiply
   77,426,814.66x = 106,851,823.09 × 42,142,914.05
4. Step 4: Simplify right side
   77,426,814.66x = 4,503,047,196,567,675
5. Step 5: Solve for x
   x = 4,503,047,196,567,675/77,426,814.66
6. Step 6: Final answer
   x = 58,158,755.68