Finding the Fourth Proportional to 83,003,015.05, 124,579,810.05 and 42,090,915.40

Step by Step Solution

1. Step 1: Write the proportion equation
   83,003,015.05 : 124,579,810.05 = 42,090,915.40 : x
2. Step 2: Convert to fraction form
   83,003,015.05/124,579,810.05 = 42,090,915.40/x
3. Step 3: Cross multiply
   83,003,015.05x = 124,579,810.05 × 42,090,915.40
4. Step 4: Simplify right side
   83,003,015.05x = 5,243,678,245,362,619
5. Step 5: Solve for x
   x = 5,243,678,245,362,619/83,003,015.05
6. Step 6: Final answer
   x = 63,174,551.46