Finding the Fourth Proportional to 282,078,688.48, 423,117,468.89 and 74,837,872.06

Step by Step Solution

1. Step 1: Write the proportion equation
   282,078,688.48 : 423,117,468.89 = 74,837,872.06 : x
2. Step 2: Convert to fraction form
   282,078,688.48/423,117,468.89 = 74,837,872.06/x
3. Step 3: Cross multiply
   282,078,688.48x = 423,117,468.89 × 74,837,872.06
4. Step 4: Simplify right side
   282,078,688.48x = 31,665,211,003,140,852
5. Step 5: Solve for x
   x = 31,665,211,003,140,852/282,078,688.48
6. Step 6: Final answer
   x = 112,256,658.50