Finding the Fourth Proportional to 648,903,526.17, 973,355,300.51 and 157,613,485.37

Step by Step Solution

1. Step 1: Write the proportion equation
   648,903,526.17 : 973,355,300.51 = 157,613,485.37 : x
2. Step 2: Convert to fraction form
   648,903,526.17/973,355,300.51 = 157,613,485.37/x
3. Step 3: Cross multiply
   648,903,526.17x = 973,355,300.51 × 157,613,485.37
4. Step 4: Simplify right side
   648,903,526.17x = 153,413,921,412,910,144
5. Step 5: Solve for x
   x = 153,413,921,412,910,144/648,903,526.17
6. Step 6: Final answer
   x = 236,420,230.78