Finding the Fourth Proportional to 77,075,599.48, 106,354,551.38 and 42,259,128.12

Step by Step Solution

1. Step 1: Write the proportion equation
   77,075,599.48 : 106,354,551.38 = 42,259,128.12 : x
2. Step 2: Convert to fraction form
   77,075,599.48/106,354,551.38 = 42,259,128.12/x
3. Step 3: Cross multiply
   77,075,599.48x = 106,354,551.38 × 42,259,128.12
4. Step 4: Simplify right side
   77,075,599.48x = 4,494,450,612,912,542.50
5. Step 5: Solve for x
   x = 4,494,450,612,912,542.50/77,075,599.48
6. Step 6: Final answer
   x = 58,312,236.86